--- ray/src/hd/holo.h	1997/12/12 19:52:31	3.7
+++ ray/src/hd/holo.h	1997/12/16 15:01:25	3.8
@@ -94,7 +94,7 @@ typedef struct holo {
 extern HOLO	*hdinit(), *hdalloc();
 extern BEAM	*hdgetbeam();
 extern RAYVAL	*hdnewrays();
-extern long	hdmemuse(), hdfiluse();
+extern long	hdmemuse(), hdfiluse(), hdfilen();
 extern double	hdray(), hdinter();
 extern unsigned	hdcode();